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18367 (1991 FS1)
Classification: Main-belt Asteroid          SPK-ID: 2018367
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495163666966175 3.2783e-08  
a 2.423029123290066 7.8878e-09 au
q 2.060746612375645 8.0205e-08 au
i .4074700523867551 3.5828e-06 deg
node 51.61085937014226 0.00047568 deg
peri 179.8157578814636 0.00047581 deg
M 274.7931246886036 1.2078e-05 deg
tp 2459526.568252917998
(2021-Nov-08.06825292)
4.6782e-05 TDB
period 1377.64201094673
3.77
6.7271e-06
1.842e-08
d
yr
n .2613160727819299 1.276e-09 deg/d
Q 2.785311634204487 9.0672e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1967  
   data-arc span      24365 days (66.71 yr)  
   first obs. used      1954-06-30  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:27:39  

Additional Information
 Earth MOID = 1.04876 au 
 Jupiter MOID = 2.20373 au 
 T_jup = 3.497 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO452431  
diameter diameter 3.609 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18367 (1991 FS1)          Discovered 1991-Mar-17 by Debehogne, H. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 FS1 = 1992 RP2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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